A travelling vehicle system includes travelling vehicles and a controller. The controller includes a storage that stores a last permitted travelling vehicle, to which a passage permission is transmitted lastly and the passage permission for which is not canceled, for each direction in a branching section or a merging section included in a blocking area, stores a last canceled travelling vehicle, the passage permission for which is canceled lastly, for each direction in the blocking area, and stores the travelling vehicle, to which the passage permission in a same direction in the blocking area is transmitted lastly, as a forward travelling vehicle of a travelling vehicle waiting for the permission to pass through the blocking area at the time of transmission of the passage permission to the passage-permission waiting travelling vehicle, and a determiner that determines whether to give passage permission to the travelling vehicle waiting for the permission.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The travelling vehicle system according to claim 1, wherein, when the last permitted travelling vehicle for the blocking area is stored in the first storage, if the last permitted travelling vehicle coincides with the forward travelling vehicle of the travelling vehicle waiting for the permission to pass through the blocking area and if a travelling direction of the passage-permission waiting travelling vehicle in the branching section included in the blocking area coincides with a direction of the last permitted travelling vehicle, the determiner gives permission to pass through the blocking area to the passage-permission waiting travelling vehicle.
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April 4, 2019
August 2, 2022
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